English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Based on an observer-centric methodology, we pinpoint the basic origin of thespectral Planckianity of the asymptotic Hawking modes in the conventionaltreatments of the evaporating horizons. By considering an observer who analyzesa causal horizon in a generic spacetime, we first clarify how the asymptoticPlanckian spectrum is imposed on the exponentially redshifted Hawking modesthrough a geometric dispersion mechanism developed by a semiclassicalenvironment which is composed by all the modes that build up the curvature ofthe causal patch of the asymptotic observer. We also discuss the actualmicroscopic phenomenon of the Hawking evaporation of generic causal horizons.Our quantum description is based on a novel holographic scheme of gravitationalopen quantum systems in which the degrees of freedom that build up thecurvature of the observer's causal patch interact with the radiated Hawkingmodes, initially as environmental quanta, and after a crossover time, asquantum defects. Planckian dispersion of the modes would only be developed inthe strict thermodynamic limit of this quantum environment, called optimaldisperser, which is nevertheless avoided holographically. Finally, we outlineand characterize how our microscopic formulation of the observer-centricholography, beyond the AdS/CFT examples and for generic causal patches, doesrealize the information-theoretic processing of unitarity.

Hawking modes and the optimal disperser : Holographic lessons from the observer's causal-patch unitarity